package mutations

import (
	"context"

	"git.aiterp.net/rpdata/api/graphql/resolver/types"
	"git.aiterp.net/rpdata/api/internal/auth"
	"git.aiterp.net/rpdata/api/model/change"
	"git.aiterp.net/rpdata/api/model/story"
)

// RemoveChapterArgs is args for the addChapter mutation
type RemoveChapterArgs struct {
	ID string
}

// RemoveChapter resolves the removeChapter mutation
func (r *MutationResolver) RemoveChapter(ctx context.Context, args *RemoveChapterArgs) (*types.ChapterResolver, error) {
	token := auth.TokenFromContext(ctx)
	if !token.Permitted("member", "chapter.edit") {
		return nil, ErrUnauthorized
	}

	chapter, err := story.FindChapterID(args.ID)
	if err != nil {
		return nil, err
	}

	err = chapter.Remove()
	if err != nil {
		return nil, err
	}

	go change.Submit("Chapter", "remove", token.UserID, chapter.ID, nil)

	return &types.ChapterResolver{C: chapter}, nil
}